Lock



FIG. 1 is a front perspective view, portions being shown in broken lines, of the lock showing my new design;

FIG. 2 is a front view of the lock of FIG. 1;

FIG. 3 is a left side view of the lock of FIG. 1;

FIG. 4 is a top plan view of the lock of FIG. 1;

FIG. 5 is a rear view of the lock of FIG. 1;

FIG. 6 is a right side view of the lock of FIG. 1; and,

FIG. 7 is a bottom plan view of the lock of FIG. 1.

The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lock, as shown and described. 